STORY: The exchange took place when Biden called Erdogan to congratulate him on his victory in Turkey's presidential election on Sunday.

"I spoke to Erdogan. I congratulated Erdogan. He still wants to work out something on the (F-16s). I told him we wanted to deal with Sweden, so let's get that done. And so we'll be back in touch with one another," Biden told reporters before departing the White House for Delaware.

Bids for NATO membership must be approved by all NATO members. Both Turkey and Hungary have yet to approve Sweden's bid.